|October 3, 2010, 03:35||
moving refernce frame (MRF) vs sling mesh
Join Date: Oct 2010
Posts: 25Rep Power: 7
I am working on the modeling of flow field in stirred tanks currently. The geometry consists of impeller, baffle, etc. I have tried both moving reference frame (MRF) for steady state and sliding mesh (SM) for transient simulation. I have a few questions to ask you guys.
1. I noticed some post (Moving reference frame ) in this forum said MRF is not good and yields wrong simulation result. Is this confirmed by many Fluent users?.
2. Some guy said “steady-state” can be reached in some stirred tanks after many cycles to reach by sliding mesh method. What does “steady-state” mean? Do it mean that flow field will be the “same” when impeller is located in the same position in the next cycle?
3. Will initial condition in transient case affect the final simulation result if the so-called "steady state" can be reached after many cycles? Or it affects the convergence speed only?
Please help. Any comment is really appreciated. Thanks again!
|Thread||Thread Starter||Forum||Replies||Last Post|
|3D Hybrid Mesh Errors||DarrenC||ANSYS Meshing & Geometry||11||August 5, 2013 06:42|
|[ICEM] Generating Mesh for STL Car in Windtunnel Simulation||tommymoose||ANSYS Meshing & Geometry||48||April 15, 2013 04:24|
|2D Mesh Generation Tutorial for GMSH||aeroslacker||Open Source Meshers: Gmsh, Netgen, CGNS, ...||12||January 19, 2012 04:52|
|does sb can tell me what is the differences between moving mesh and moving frame?||caohan||FLUENT||0||June 2, 2010 05:15|
|Moving Mesh and MRF||Romain||FLUENT||1||May 16, 2002 03:45|